It's 136 calories for the entire pint, and it's got 20 grams of whey protein concentrate in it. (freedieting.com)
The quality of proteins being used are high quality in their isolate forms, where as most other protein bars use whey protein concentrate as the main protein source. (bodybuildingforyou.com)
For muscle building purposes, then, stick with whey protein concentrate. (blog.nkdnutrition.com)